优化索引
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@@ -20,8 +20,8 @@ type PendingTask struct {
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// GORM 会根据 TaskID 字段自动填充此关联
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Task *Task `gorm:"foreignKey:TaskID"`
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ExecuteAt time.Time `gorm:"index"` // 任务执行时间
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TaskExecutionLogID uint `gorm:"unique;not null"` // 对应的执行历史记录ID
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ExecuteAt time.Time `gorm:"index"` // 任务执行时间
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TaskExecutionLogID uint `gorm:"unique;not null;index"` // 对应的执行历史记录ID
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// 通过 TaskExecutionLogID 关联到唯一的 TaskExecutionLog 记录
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// ON DELETE CASCADE 确保如果日志被删除,这个待办任务也会被自动清理
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